Describes the water cycle and the importance of water, explaining evaporation and condensation, dew and frost, and the three states of water.

The rocks you see everyday can be grouped into different types, like igneous, sedimentary, or metamorphic. Some rocks are actually minerals, and you can even find fossils in some types of rocks.

Sound is created through vibrations that vary in pitch and volume. This creates sound-waves that you can hear. Includes experiments.

Features: Reading Consultants - Table of Contents - Activities - Fun Facts - Glossary - Index
Standards: Benchmark for Science Literacy: The Living Environment: The Flow of Matter and Energy; National Science Education Standards: Earth and Space Science Content Standard D: Properties of Earth Materials: Physical Science Content Standard B: Position and Motion of Objects; Light, Heat. Electricity, and Magnetism

Compasses and magnetite, magnetic poles and motors - learn about how magnets affect our lives.

Briefly explains the effects of light and includes experiments to demonstrate.

Ecos, timpanos, vibraciones y volumen. Vividas ilustraciones y textos sencillosexploran la asombrosa ciencia del sonido. Cada libro tiene un glosario, actividades practicas y fascinantes datos curiosos."